You are a prospector who has discovered an abandoned gold (Au) mine in Australia. The mine contains rock that is 2% AuAgTe4. After careful calculations you find that the cost of mining and purifying the gold would come to $6000.00 per 100 kg of the rock, which you could mine and purify each week. The price of pure gold is $14/gm. Does it make sense for you to operate the mine?

The characteristic of two different types of reactions are shown below. reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of and element. which statement is true about the atoms of the elements that participate in the two reactions? a: their identity changes in both reaction a and b. b: their identity changes in reaction a but not b. c: their identity changes in reaction b but not a. d: their identity remains the same.